Steam and combustion gas turbine



P. HORSDAL.

STEAM AND COMBUSTION GAS TURBINE Filed June. 4, 1947 Patented Dec. ,14,

STEAM AND COMBUSTION GAS TURBINE Paul Horsdal, Ottawa, Ontario, lCanada I Application June 4, 1947, Serial No. 752,477

(Cl. (ill-108) 8 Claims. i

This invention relates to .power plants, and more particularly to steam turbines or engines.

An object of this invention is to providey power without the conventional noise of exhaust from combustion.

Another object of the invention is to provide a steam-actuated power plant of simple structure and efficient operation wherein an axially disposed water jet is arranged to ixnpinge on a heated surface of a rotor for substantially instantaneous conversion of steam and including means for directing the steam in a plurality of streams against a stationary surface to impart a rotative driving forceto the rotor.

The invention will be described with reference to the accompanying drawing in which:

Figure 1 is a more or less diagrammatic side elevational view in section, substantially on the line I--I of Figure 2, of a power plant in accordance with the invention, and

Figure 2 is an end elevation in sectionsubstantially on the line 2-2 of Figure 1.

In the drawing, l is a suitably mounted sta,-

`ately c'onvert the impiging water particlesto steam.

A. plurality of passages 2l are provided to conduct the steam to the periphery of the rotor. While three suchA passages are shown, it will be understood that two or any desired number of passages may be provided. The passages arel preferably formed by recesses or grooves 2G in disc each having a wide mouth portion 2l opentionary annular member lhaving an internal' groove or housing 2. Within the stator I is mounted a rotor 3 adapted to revolve as a unit on suitable bearings Si. The rotor comprises an inner disc 5 and outer discs 6 and l connected together for rotation. The axial portions of tending conical or lie portions 8 and 9 having bearing hubs Il] and Il and `forming axial chambers l2 and I3 on either side of the inner disc 5. The peripheries of the discs 5, 6 and i are enclosed within the housing 2. f

Any suitable means are provided for heating the axial surface of disc 5 within the chamber I2. As shown, this means may comprise an axially arranged fuel jet Ill adapted to impinge on disc 5, which may be provided with a protecting baille plate I5. The products of combustion vmay be exhausted through passages itin the disc 5, for the purpose ofkeeping the periphery oi the rotor hot, to oiset condensation of steam, and communicating passages I1 in the stator l.

An axially arranged water jet I8 projects into the chamber I3 to impinge a stream of water onto the axial surface of the disc 5 within chamr.

ing into chamber I3 and a restricted portion 22 enclosed bythe abutting portion of disc l. The portion 22 gradually merges into portion 2l and extends angularly therefrom to direct the steam in a partially tangential or angular direction onto the inner surface of housing 2. Preferably'. valves 23 are providedin each passage 2l, such valves being adapted to open to permit passage of steam when the pressure of the latter reaches a predetermined deg-ree as, for instance, 30'pounds. The inner surface of housing 2 may be provided with semi-spherical recesses 2t to receive and deiiect the' steam issuing from the passages. The steam emerges through passages formed between the rotor and the stator. may be formed by providing, on the outer marginal face of the disc l, a series of curved blades or iins 25 adjacent the outlet of each passage 2li and arranged for engagement by the steam deilected by the stator. The outer edges of the blades are in engagement with the inner lateral face of the housing 2. As the streams of steam under pressure engage thestator, a rotative impelling force is applied to the rotor to drive the same. Moreover, such Iforce may be augmented by engagement of the streams of steam deflected by the surfaces 2i with the blades 25. v

Pressure reliefvalves 26 may be provided for chamber i3. I

`(Jperatlon of the devicerwill be apparent from the foregoing description.y It will be observed that the device embodies relatively few parts and may be inexpensively operated.

It willvbe obvious that various changes may bemade in the described details Without departing from the spirit of' the invention. For instance, the rotor may be of one-piece construction, having .therein the` various chambers and passages described.

Iclaimz- Y .1. A power plant comprising anannular stator, a rotor peripherally mounted in the stator,

said rotor having a pair of outer vdiscs and an axial portion of said inner disc, a water jet exe Such passages tending into said chamber and arranged to impinge on the axial portion of said inner disc, means forming steam passages each having an inlet in the chamber and an outlet on a surface of the stator, and blades carried by said one disc and engaging the surface of the rotor at points adjacent said passage outlet.

2. A power plant comprising an annular stator housing, a rotor peripherally mounted in the housing said rotor having a pair of outer discs and an inner disc, one of the outer discs having walls forming an axial chamber between said outer and inner discs, means for heating the axial portion of the inner disc, and a water jet extending into the chamber and arranged to impinge upon the axial portion of the inner disc, said inner disc having grooves therein forming steam passages between the inner disc and said outer disc, each passage having an inlet in said chamber and-an outlet at the periphery of the discs in said housing.

3. A power plant as deined in claim 2, each of said passages having a valve therein arranged .to open under a predetermined pressure.

4. A power plant as defined in claim 2, including a cup-shaped water jet receiving member axially mounted on said inner disc.

5. A power plant as defined in claim 2, wherein each of said passages has a relatively wide curved inlet portion and a relatively narrow straight portion extending angularly from said inlet portion to the outlet.

6. A power plant as dened n claim 2, including a plurality of series of curved blades on the marginal outer face of said one disc within the housing, each series of blades being located adjacent one of said outlets.

7. A power plant comprising an annular stator housing, a rotor peripherally mounted in the housing, said rotor having a pair of outer discs and an inner disc, each outer disc having walls forming an axial chamber on the respective side of said inner disc, an axial fuel burner in one chamber arranged to heat the axial portion of the inner disc, an axial water jet in the other chamber arranged to impinge a stream of water on the axial portion'of the inner disc, means forming a plurality of steam passages between one of said outer discs and the inner discv and each having an inlet in said last named chamber and an outlet on the periphery of-the discs withln the housing, said housing having curved steamdefiecting recesses therein, and a pluralityof series of curved blades carried on the lateral face of last named outer disc and within the housing, each said series of blades being located adjacent one of said outlets.

8. A power plant comprising an annular stator, a rotor peripherally mounted in the stator, walls forming an axial chamber on the rotor, the axial portion of the rotor constituting the inner wall of the chamber, means for heating the axial portion of the rotor, and a water jet in axial alignment with and extending into the chamber and arranged to impinge on the heated axial portion of the rotor, said rotor having steam passages therein each having an inlet in the chamber and an outlet on the surface of the stator.

' PAUL HORSDAL.

REFERENCES CITED UNITED STATES PATENTS Name Date Newcomer Mar. 4, 1947 Number 

